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Gold or Silver?

Discussion in 'General Electronics Chat' started by Electronman, Sep 17, 2009.

  1. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    I think that was her concern.
     
  2. PatM

    PatM Member

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    But if you loose conductivity with a silver contact, you can burnish it.
    Do this with a gold contact and you wear away the thin gold coating.
     
  3. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Why would you burnish a gold contact?.
     
  4. dave

    Dave New Member

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  5. Mikebits

    Mikebits Well-Known Member

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    How true, why would you need to as that defeats the purpose of using gold. At any rate I never burnish contacts, I have found a pencil eraser to be very effective in cleaning contacts.
     
    Last edited: Sep 20, 2009
  6. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Wouldn't that be considered 'burnishing'?.

    As you say, pencil rubber is quite good for it - so is a tiny squirt of WD40, and inserting the connector a few times.
     
  7. Mikebits

    Mikebits Well-Known Member

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    I think of burnishing as something more abrasive, erasers seem to be less evasive on the metal coat, yet are still effective.
     
  8. PatM

    PatM Member

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    I never do, but I have seen someone doing it.

    I would think that the eraser would be the most abrasive.
     
  9. Boncuk

    Boncuk New Member

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    A Q-tip dunk into alcohol cleans as well. (Not whiskey! Too expensive) :D
     
  10. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Many erasers have sand in them and will destroy the plating on a contact. The white ones for "artists" do not have the abrasive.
     
  11. mvs sarma

    mvs sarma Well-Known Member

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    See this link Resistivity - Wikipedia, the free encyclopedia for specific resistance of metals, you would be able to decide. due to cost effectiveness, they use copper and Aluminum with some protection against corrosion. It is economical to use aluminum (in fact ACSR) for power line feeders
     
    Last edited: Sep 20, 2009
  12. killivolt

    killivolt Well-Known Member

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    Renewing XLR's connectors.

    Remove Tarnish from Silver

    I noticed this thinking of a way to renew XLR's on cables that become affected after aging a while.

    In the schools we have cables running from mixers and some are old and out of date should be replaced I'm thinking the cable's might be salvageable ?

    Based on what you guy's are saying.

    I did consider what Nigel said about the WD40 though.


    kv
     
  13. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    What has that got to do with silver?, you surely don't have silver cabling :D
     
  14. bountyhunter

    bountyhunter Well-Known Member

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    You can't burnish contacts inside switches or assemblies. You use gold because it doesn't oxidize in the first place and never have to worry about it in any reasonable life span of use.
     
  15. Speakerguy

    Speakerguy Active Member

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    I have a 1950's era Selmer Paris clarinet with silver plated keys. After seeing how fast they tarnish, I'll stick with gold plated stuff for my electronics work.
     
  16. mvs sarma

    mvs sarma Well-Known Member

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    as the clarinet crossed 59 years almost, perhaps a golden treat appears apt !!!
     
    Last edited: Sep 22, 2009
  17. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    Sweaty fingers on keys, what do you expect?.
     
  18. Speakerguy

    Speakerguy Active Member

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    It's actually pretty uniform over all the surface of the keys, not just where the fingers hit 'em. Still a great clarinet though.
     
  19. audioguru

    audioguru Well-Known Member Most Helpful Member

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    Silver trays and teapots tarnish just by looking at them.
     
  20. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    I don't have a great many silver teapots or trays! :p

    In fact, I don't think I've got a single silver article?.
     
  21. killivolt

    killivolt Well-Known Member

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    I think I had to many beers that night.

    What was I thinking.

    Maybe safer for the WD40.......... rinse Push-Pull rinse and repeat.....:p


    kv:D
     

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